2-(Chloromethyl)-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-carboxaldehyde
6-(Chloromethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxaldehyde
2-(Chloromethyl)-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxaldehyde
5-Bromo-2-(difluoromethyl)pyridine-4-acetic acid